Nearly three decades after Vader first appeared on screen, moviegoers on May 19 will finally see in Star Wars, Episode III: Revenge of the Sith what led Anakin Skywalker to succumb to the dark side and become Darth Vader.

Three main men have worn the cape and mask of Darth Vader in George Lucas' Star Wars saga. Hayden Christensen, who dons the Vader costume for Star Wars, Episode III: Revenge of the Sith, in theaters May 19, says he could almost feel a power emanating from the costume.